Home / 27,735.96-38,275.56-15,160.80

Finding the Fourth Proportional to 27,735.96, 38,275.56 and 15,160.80

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Solution

The fourth proportional to 27,735.96, 38,275.56 and 15,160.80 is: 20,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.96 : 38,275.56 = 15,160.80 : x
  2. Step 2: Convert to fraction form
    27,735.96/38,275.56 = 15,160.80/x
  3. Step 3: Cross multiply
    27,735.96x = 38,275.56 × 15,160.80
  4. Step 4: Simplify right side
    27,735.96x = 580,288,110.05
  5. Step 5: Solve for x
    x = 580,288,110.05/27,735.96
  6. Step 6: Final answer
    x = 20,921.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.